膜片聯軸器在傳遞扭矩的同時通過彈性膜片的的變形來補償軸向和角向的位移，是一種高性能的金屬彈性撓性聯軸器。膜片式聯軸器結構緊湊(cou)，傳(chuan)遞(di)扭矩大，使用(yong)壽命長，免維護，耐高(gao)溫，耐酸堿(jian)防腐蝕，適用(yong)于高(gao)溫高(gao)速(su)及有腐蝕工況環境的軸系(xi)傳(chuan)動。

膜片型聯(lian)(lian)軸(zhou)器(qi)(qi)能(neng)補償(chang)主動機與從動機之間由于制造誤差、安裝誤差、承載變(bian)形以及溫升變(bian)化的影響等所引起的軸(zhou)向、徑向和角向偏移。膜片彈性聯(lian)(lian)軸(zhou)器(qi)(qi)屬(shu)金(jin)屬(shu)彈性元件撓(nao)性聯(lian)(lian)軸(zhou)器(qi)(qi)，其依靠(kao)金(jin)屬(shu)聯(lian)(lian)軸(zhou)器(qi)(qi)膜片來聯(lian)(lian)接主、從動機傳遞扭矩，具有彈性減(jian)振、無噪聲、不需(xu)潤滑的優點。

膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)至少由一個(ge)(ge)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)和(he)(he)兩(liang)個(ge)(ge)軸(zhou)(zhou)套(tao)(tao)(tao)組成(cheng)。膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)被用銷釘緊(jin)固(gu)在軸(zhou)(zhou)套(tao)(tao)(tao)上(shang)一般不(bu)會松(song)動或引起膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)和(he)(he)軸(zhou)(zhou)套(tao)(tao)(tao)之間的(de)(de)反沖(chong)。有(you)一些生產商提供(gong)兩(liang)個(ge)(ge)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)的(de)(de)，也(ye)有(you)提供(gong)三個(ge)(ge)膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)的(de)(de)，中間有(you)一個(ge)(ge)或兩(liang)個(ge)(ge)剛性元件，兩(liang)邊 再連在軸(zhou)(zhou)套(tao)(tao)(tao)上(shang)。單膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)和(he)(he)雙膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)的(de)(de)不(bu)同(tong)(tong)之處是(shi)處理各種偏差能(neng)力的(de)(de)不(bu)同(tong)(tong)，鑒于(yu)其(qi)需要膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)能(neng)復雜的(de)(de)彎(wan)曲，所以單膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)不(bu)太適應偏心(xin)。而雙膜(mo)(mo)(mo)(mo)片(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)可(ke)以同(tong)(tong)時曲向不(bu)同(tong)(tong)的(de)(de)方向，以此來補(bu)償偏心(xin)。